package com.wsp.controllermanagement.config;

import lombok.Data;
import lombok.Setter;
import org.apache.http.client.HttpClient;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.config.Registry;
import org.apache.http.config.RegistryBuilder;
import org.apache.http.conn.socket.ConnectionSocketFactory;
import org.apache.http.conn.socket.PlainConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.client.ClientHttpRequestFactory;
import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
import org.springframework.web.client.RestTemplate;

/**
 * Package: com.wsp.controllermanagement.config
 * Description： TODO
 *
 * @Author: 巫思平
 * Copyright: Copyright (c) 2020
 * Version: 1
 */
@Configuration
@Setter
@ConfigurationProperties("wsp.rest.client.config")
@Data
public class RestTemplateConfig {
    /**
     * 最大连接数
     */
    private int maxTotal;
    /**
     * 单个路由最大连接数
     */
    private int defaultMaxPerRoute;
    /**
     * 最大空间时间
     */
    private int connectTimeout;
    /**
     * 服务器返回数据(response)的时间，超过抛出read timeout
     */
    private int connectionRequestTimeout;
    /**
     * 连接上服务器(握手成功)的时间，超出抛出connect timeout
     */
    private Integer socketTimeout;
    /**
     * 从连接池中获取连接的超时时间，超时间未拿到可用连接，
     * 会抛出ConnectionPoolTimeoutException
     */
    private Integer validateAfterInactivity;


    @Bean
    public RestTemplate restTemplate() {
        return new RestTemplate(httpRequestFactory());
    }

    @Bean
    public ClientHttpRequestFactory httpRequestFactory() {
        return new HttpComponentsClientHttpRequestFactory(httpClient());
    }

    @Bean
    public HttpClient httpClient() {
        Registry<ConnectionSocketFactory> registry = RegistryBuilder.<ConnectionSocketFactory>create()
                .register("http", PlainConnectionSocketFactory.getSocketFactory())
                .register("https", SSLConnectionSocketFactory.getSocketFactory())
                .build();
        PoolingHttpClientConnectionManager connectionManager = new PoolingHttpClientConnectionManager(registry);
        connectionManager.setMaxTotal(maxTotal);
        connectionManager.setDefaultMaxPerRoute(defaultMaxPerRoute);
        connectionManager.setValidateAfterInactivity(validateAfterInactivity);
        RequestConfig requestConfig = RequestConfig.custom()
                .setSocketTimeout(socketTimeout)
                .setConnectTimeout(connectTimeout)
                .setConnectionRequestTimeout(connectionRequestTimeout)
                .build();
        return HttpClientBuilder.create()
                .setDefaultRequestConfig(requestConfig)
                .setConnectionManager(connectionManager)
                .build();
    }

}
